Proof of Factorization of Fragmentation Function in Non-Equilibrium QCD

Abstract

In this paper we prove factorization of fragmentation function in non-equilibrium QCD by using Schwinger-Keldysh closed-time path integral formalism. We use the background field method of QCD in a pure gauge in path integral approach to prove factorization of fragmentation function in non-equilibrium QCD. Our proof is valid in any arbitrary gauge fixing parameter $\alpha$. This may be relevant to study hadron production from quark-gluon plasma at high energy heavy-ion colliders at RHIC and LHC.

13 pages latex, (Final Published Version, Annals of Physics)

References in corpus (3)

• Proof of Factorization Using Background Field Method of QCD
• Factorization of Soft and Collinear Divergences in Non-Equilibrium Quantum Field Theory
• Fragmentation Function in Non-Equilibrium QCD Using Closed-Time Path Integral Formalism

Cited by in corpus (6)

• Proof of NRQCD Factorization at All Order in Coupling Constant in Heavy Quarkonium Production
• Light-Like Wilson Line in QCD Without Path Ordering
• Altarelli-Parisi Equation in Non-Equilibrium QCD
• Jet Quenching and Gluon to Hadron Fragmentation Function in Non-Equilibrium QCD at RHIC and LHC
• Proof of Factorization of Heavy Quarkonium Production in Non-Equilibrium QCD at RHIC and LHC
• Gauge Fixing Identity in the Background Field Method of QCD in Pure Gauge